numerous: Cork-Limerick, Belfast. Ir. Ó Gadhra, gadhar, a hound. Originally a sept of N Connacht where they go under O'Gara, q.v. Some of them settled in Munster in 16 cent. They also appear as Guiry. SI & SGG.

Guiry:

Quite numerous: S Tipperary-Waterford, Limerick-Kerry. Ir. Ó Gadhra, gadhar, a dog. See Geary (Munster); O'Gara (Connacht). Woulfe says that the name originated in North Connacht and some moved to Munster in 16 cent. IF & SGG.